[BTeam] Fwd: [Hallc] Close-out of PAC 41

[Jay Benesch]

FYI


-------- Original Message --------
Subject: 	[Hallc] Close-out of PAC 41
Date: 	Thu, 22 May 2014 15:02:36 -0400
From: 	Erica Jones <eljones at jlab.org>
Organization: 	Jefferson Lab
To: 	Hall C <hallc at jlab.org>



Greetings all,

This e-mail is to fill you in on the close-out of PAC 41, the special 
meeting to discuss the priority of already approved proposals for 
scheduling during the first 3-5 years of production running in the 12 
GeV era. Specifically, the PAC was asked to identify a subset proposals 
that it considers to be "High Impact" for scheduling priority during 
this time frame. I list below the experiments that were identified as 
part of this "High Impact" group.

Please note that this is science guidance from the PAC, but not a 
scheduling mandate. Scheduling for experiments will be done as ever 
taking into account multiple technical and practical considerations from 
the users and the laboratory divisions. The PAC also stressed that they 
are looking forward to results from the full program of approved 
experiments.

In some cases, a subset of days within an experiment were viewed as High 
Impact. There was also some mention made of particularly difficult 
decisions. The latter are mentioned where applicable below in parentheses.

Bob McKeown will present the PAC 41 results in detail at the upcoming 
user meeting and there will be a report posted in time. We will look 
forward to discussing all of this with you also at the upcoming Hall A/C 
combined collaboration meeting!

Very best,
Thia and Steve

Exp#
Exp name or description
Hall

E12-06-102
GlueX: Mapping the Spectrum of Light Quark Mesons and Gluonic 
Excitations with Linearly Polarized Photons
D

E12-06-101
Measurement of the Charged Pion Form Factor to High Q2
C

E12-07-109
GEp/GMp: Large Acceptance Proton Form Factor Ratio Meas's at 13 and 15 
(GeV/c)2 Using Recoil Polarization Method
A
(The proton was chosen, with much debate, over the neutron as the Q^2 
reach was larger plus the zero crossing possibility.)

E12-11-106
High Precision Measurement of the Proton Charge Radius
B

E12-06-113
BONuS: The Structure of the Free Neutron at Large x-Bjorken
B

E12-10-103
MARATHON: Measurement of the F2n/F2p, d/u Ratios and A=3 EMC Effect in 
Deep Inelastic Scattering off the Tritium and Helium Mirror Nuclei
A


E12-06-110
A1n HallC–3He: Meas of Neutron Spin Asymmetry A1n in the Valence Quark 
Region Using an 11 GeV Beam and a Polarized 3He Target in Hall C
C

C12-11-111
TMD CLAS–HDIce: SIDIS on Transverse polarized target
B

C12-12-009
Dihadron CLAS-HDIce: Measurement of transversity with dihadron 
production in SIDIS with transversely polarized target
B

E12-06-112
TMD CLAS-H(Unpol): Probing the Proton's Quark Dynamics in 
Semi-Inclusive Pion Production at 12 GeV
B

E12-06-114
DVCS HallA–H(UU,LU): Measurements of Electron-Helicity Dependent Cross 
Sections of DVCS with CEBAF at 12 GeV
A

C12-12-010
DVCS CLAS–HDIce: DVCS at 11 GeV with transversely polarized target using 
the CLAS12 Detector
B

E12-11-003
DVCS CLAS–D(UU,LU): DVCS on the Neutron with CLAS12 at 11 GeV
B
(This is on the list to be considered as a backup if HDIce delayed.)

(The Hall C exclusive pion L/T was also much discussed as critical to 
the overall DVCS/GPD program.)

E12-13-005
Bubble Chamber: Measurement of 16O(3,±)12C with a bubblechamber and a 
bremsstrahlung beam
INJ

E12-11-101
PREx-II: Precision Parity-Violating Measurement of the Neutron Skin of Lead
A
(Here, the PAC noted that CREX was also both needed and complementary to 
PREX-II, while PREX-II had more direct impact for astrophysics.)

E12-06-105
SRC–hiX: Inclusive Scattering from Nuclei at $x > 1$ in the quasielastic 
and deeply inelastic regimes
C

E12-11-112
SRC–Tritium: Precision measurement of the isospin dependence in the 2N 
and 3N short range correlation region
A

E12-11-006
HPS : Status of the Heavy Photon Search Experiment at Jefferson 
Laboratory (Update on PR12_11_006)
B
(The pre-engineering run + 14 physics days at 4.4 GeV were viewed as 
High Impact.)

E12-10-009
APEX : Search for new Vector Boson A1 Decaying to e+e-
A

-- 
Erica Jones
Hall C Admin. & Polarized Target
Jefferson Laboratory
12000 Jefferson Avenue, Ste. 6
Newport News, VA  23606
Phone:	(757) 269-5699
Fax:	(757) 269-5235
Email:	eljones at jlab.org